Re: No console anymore. How to figure this out.

On 3/22/26 6:09 PM, Daniel Frey wrote:
> I'm pretty sure that's because modules in the kernel that require it 
> automatically pulls it in. It's not on by default. A kernel module 
> that requires it has to be selected in the kernel for that to be built.
>
> As the binary nvidia drivers are not in the kernel source, it doesn't 
> get pulled in via dependency.
>
> I suppose there may be a case for a bugreport to the gentoo-sources 
> build - as they could put in an option that pulls in these modules for 
> the nvidia driver. However, I don't know if these modules require the 
> presence of what gpu driver is selected for their build process (this 
> could be a dealbreaker for this option.)
>
> If you use amdgpu, you have to set it as a module. If it's built into 
> the kernel, TTM and TTM_HELPER aren't pulled in.
>
> I don't have an AMD GPU in this machine at all, and I remember having 
> to set amdgpu to a module to get nvidia's framebuffer to work.
>
> Dan
>
> On 3/22/26 9:36 AM, Dale wrote:
>> On 3/22/26 11:22 AM, Dale wrote:
>>> On 3/22/26 10:34 AM, Daniel Frey wrote:
>>>> Hi Dale,
>>>>
>>>> I found the link that discusses this:
>>>>
>>>> https://forums.developer.nvidia.com/t/drm-fbdev-wayland-presentation- 
>>>> support-with-linux-kernel-6-11-and-above/307920
>>>>
>>>> Dan
>>>
>>> Dang, that thread was a while ago.  I wonder why I'm hitting this 
>>> now?  It sounds like there is some sort of a fix that was supposed 
>>> to prevent this but maybe the TTM thing is the fix?????  They talk 
>>> about different versions but I suspect some code trickles to all the 
>>> versions at some point.  Maybe my series just took a while.
>>>
>>> Thanks for the info.  I haven't rebooted yet but will go dig into 
>>> this kernel option as soon as I can.  I have two older version of 
>>> kernels that I would need to redo as well.
>>>
>>> Dale
>>>
>>> :-)  :-)
>>
>>
>> I took a quick peek and found this.
>>
>>
>> Symbol: DRM_TTM [=y]
>> Symbol: DRM_TTM_HELPER [=y]
>>
>>
>> It seems it is on by default.  I don't recall ever hearing of this 
>> driver.  I'm not sure what this means tho.  Does it mean this isn't 
>> the problem or am I missing some other piece somewhere????  I guess 
>> when I reboot, that may shed some more light on this problem.
>>
>> Why would Nvidia break the console tho?????
>>
>> Dale
>>
>> :-)  :-)

I checked, amdgpu is not enabled here.  If I enable it and for some 
reason my hardware can't use it, it just doesn't do anything right??  If 
I recall correctly, drivers are only used if there is hardware that 
needs them.  My thinking, just enable it, build the kernel, reboot and 
if it works, great.  If not, no smoke and the computer doesn't kick me 
in the sensitive parts either.  ROFL

At this point, I'd trying using French to fix this.  I don't know French 
but I could learn a few words, very bad ones.  ;-)

Dale

:-)  :-)